Liz Davis, public information officer of Assateague Island National Seashore, confirmed officials are investigating the incident, but did not have any further details Tuesday.

asset not included because it is a duplicate of primary asset

Davis also confirmed the pony featured in the photographs is Susi Sole, or N2BHS-M.

According to Assateague Island Alliance's website, Sole was born in 2014 and is often found in the developed area.

A series of photographs capturing an interaction between two dogs and an Assateague horse on Saturday, Oct. 28 is under investigation by National Park officials.

Assateague Island is a 37-mile long stretch of land along the coast of Maryland and Virginia. The area consists of three parks: the Assateague Island National Seashore, Assateague Island State Park, which borders the national park to the north near Ocean City, Md., and the Chincoteague National Wildlife Refuge in Virginia.

The three areas are renowned for their wild horses, along with their beaches and campgrounds.

The photographs, obtained by the Salisbury Daily Times, were posted to an Assateague Island Facebook group Sunday, but the poster declined to go on the record about the incident. The poster has spoken with park officials.

Both dogs appear to be wearing collars in the photographs.

A series of photographs capturing an interaction between two dogs and an Assateague horse on Saturday, Oct. 28 is under investigation by National Park officials.

Regulations at Assateague Island National Seashore require all pets to be on a leash no longer than 6 feet at all times.

Pets are prohibited in all back country campsites, nature trails, the lifeguard-protected beach, north of the state park to the Ocean City Inlet and the entire Virginia portion, even in cars. They are also prohibited in portions of the state park.